845801 divided by 80 
Let's see how many times 80 fits into 845801.

Step 1:
If we divide 8 by 80, we get 0 and a remainder of 8.
Use 0 as the next digit of our solution. 
Result so far: 0.0
If we subtract 0 from 8, we get 8.
Include the next digit (4) from the dividend after 8, then repeat: 84 / 80

Going ahead to step 2:
80 can be fit into 84 1 times, resulting in a remainder of 4.
Put 1 as the next digit of the answer. 
Result so far: 1.0
If we take 80 away from 84, we end up with 4.
Include the next digit (5) from the dividend after 4, then repeat: 45 / 80

On to step 3:
If we divide 45 by 80, we get 0 and a remainder of 45.
The next digit of our result is 0. 
Result so far: 10.0
Subtracting 0 from 45 leaves us with 45.
Take the next digit (8) from the dividend and append it to 45, then repeat: 458 / 80

Going ahead to step 4:
80 can be fit into 458 5 times, resulting in a remainder of 58.
Use 5 as the next digit of our solution. 
Result so far: 105.0
If we take 400 away from 458, we end up with 58.
Bring next digit (0) of the dividend behind the 58 and repeat the process: 580 / 80

Step 5:
80 goes into 580 7 times with a remainder of 20.
Record the quotient 7 as the next digit in the result. 
Result so far: 1057.0
Deduct 560 from 580 and we're left with 20.
Bring next digit (1) of the dividend behind the 20 and repeat the process: 201 / 80

Step 6:
80 can be fit into 201 2 times, resulting in a remainder of 41.
The next digit of our result is 2. 
Result so far: 10572.0
Deduct 160 from 201 and we're left with 41.
Since there are no more digits in the dividend, we add a zero to the remainder making it 410, and continue the process.

Moving on to step 7:
80 can be fit into 410 5 times, resulting in a remainder of 10.
The next digit of our result is 5. 
Result so far: 10572.5
Deduct 400 from 410 and we're left with 10.
Since there are no more digits in the dividend, we add a zero to the remainder making it 100, and continue the process.

Advancing to step 8:
If we divide 100 by 80, we get 1 and a remainder of 20.
Record the quotient 1 as the next digit in the result. 
Result so far: 10572.51
If we take 80 away from 100, we end up with 20.
Since there are no more digits in the dividend, we add a zero to the remainder making it 200, and continue the process.

Going ahead to step 9:
When dividing 200 by 80, we get 2 with a remainder of 40.
The next digit of our result is 2. 
Result so far: 10572.512
Subtract 160 from 200 to get 40.
Since there are no more digits in the dividend, we add a zero to the remainder making it 400, and continue the process.

Step 10:
400 divided by 80 is 5 with a remainder of 0.
Write down 5 as next digit of the result. 
Result so far: 10572.5125
Subtract 400 from 400 to get 0.
Since there are no more digits in the dividend, we add a zero to the remainder making it 0, and continue the process.

On to step 11:
80 can be fit into 0 0 times, resulting in a remainder of 0.
Record the quotient 0 as the next digit in the result. 
Result so far: 10572.5125
Subtracting 0 from 0 leaves us with 0.
Since there are no more digits in the dividend, we add a zero to the remainder making it 0, and continue the process.

Let's proceed to step 12:
The number 80 fits into 0 0 times, leaving a remainder of 0.
Use 0 as the next digit of our solution. 
Result so far: 10572.5125
If we subtract 0 from 0, we get 0.
Since there are no more digits in the dividend, we add a zero to the remainder making it 0, and continue the process.

After the division, we end up with 10572.5125 and a remainder of 0.0.